Posts: 1169
Location: New Hope MN | Octane rating/number is simply the resistance to detonating due to compression. Race engines require this because they typically run higher compression upwards of 13:1. If they ran "pump" gas the engine would predetonate.
Therefore, you should always run engines with the proper octane level they were designed to run off of if you want proper performance. Running higher octane fuels in factory motors can cause fuel to not fully combust and escape out the exhaust. This pollutes our lakes. Furthermore, many high octane fuels contain lead to help lubricate and cool high performance engines. This is not the kind of thing we want in our lakes either... So please don't use it.
Edited by dtaijo174 9/26/2016 2:46 PM
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